Oh wise MNers, please advise.
DD is smart and kind and beautiful and funny, and (mostly) good company. She's sixteen years old, in sixth form, but looks about thirteen and she's frequently upset about this. She's short, with a small frame. She wears no makeup and likes to dress in comfortable baggy clothes (dungarees, sweatshirts etc) or pretty dresses/skirts in the summer. She has breasts and hips and a waist and could not, objectively, be mistaken for a child or a boy. She's just very petite and looks young for her age. Teachers who don't know her, for instance, will direct her away from the sixth form building, and she'll have to tell them, no actually, I belong here.
DD has been taunted and teased (not in a friendly way) about her body. One boy said she had an "eight year old's body" (excuse me, but who the fuck are YOU to comment on her body?). Another girl said she'd only attract a peodophile (WTF?). It's really getting her down. She had an eating disorder in the past, and while it's under control, this kind of relentless focus on her body and its "deficiencies" is unhelpful and triggering.
I've had chats with her about boundaries and assertiveness with her friends (this is hard and I know takes years). I know it will all be alright in a few years time, but in the meantime, how to support? Are there any simple things she might do to look a bit older (one friend suggested getting her eyebrows shaped - apparently a game changer)? On the one hand, I hate the idea of suggesting she change, but on the other hand, if there are practical things she can do to make herself look her actual age, then why not?
Any thoughts gratefully received.